Tuck-marker for sewing-machines



{No Model.) 2 Sheets-Sheet 1. J. M. GREIST. TUUK MARKER FOR SEWINGMACHINE S.

No. 504,805. Patented Sept. 12, 1893 (No Model.) 2 Sheets-Sheet 2.

J. M. GREIST.

TUGK MARKER FOR SEWING MACHINES.

No. 504,805. Patented Sept 12, 1893.

"UNITED STATES PATENT OFFICE.

JOHN M. GREIST, OF NEYV HAVEN, CONNECTICUT.

TUCK-MARKER FOR SEWING-MACHINES.

SPECIFICATION forming part of Letters Patent No. 504,805, datedSeptember 12, 1893.

Application filed December 14, 1892, Serial No. 45 5,183- (No model.)

To aZZ whom it may concern.-

Be it known that 1, JOHN ill. GRnrsr, a citizen of the United States,residing at New Haven, in the county of New Haven and State ofConnecticut, have invented certain new and useful Improvements inSewing-Machine Tuck Creasers or Markers, of which the following is aspecification, reference being had therein to the accompanying drawings.

My invention relates to that class of tuck marking devices adapted toform a slight crease in the goods parallel to the row of stitches beingformed and simultaneously with the sewing operation, said crease beingfor the purpose of indicating the line on which the goods are to befolded for the next tuck.

The object of my invention is to provide a tuck marking or creasingdevice which will be simple in construction, so that it may be made atthe least possible cost, and which will perform its functions in areliable and efficient manner.

In the accompanying drawings, Figure 1 is a front side view of myimproved tuck creaser, and Fig. 2 is a rear side view thereof. Fig. 3 isa plan view of the same, and Fig. 4 is a cross section of the same online a r-4: Fig. 3. Figs. 5, 6, 7 and 8 are detail views.

A denotes the supporting plate of the attachment said plate beingprovided with a bifurcated bracket portion a intended to embrace apresser foot having suitable grooves in its shank for the reception ofthe arms of the said bifurcated bracket, the said supporting plate beingsecured to the presser foot, to hold the attachment in place, by the setscrew a.

The plate A is provided at its rear end with a standard a themetalofwhichis bent around, as more clearly shown in Fig. 2, to form a suitablebearing in which is j ournaled a short transverse shaft 1) provided atone end with a tubular arm I) in which is received the marking arm 13the forward downturned portion b of which is notched for engagement withan upturned creasing projection or lip 0 formed on an arm C at theforward part of the plate C, the latter having at its rear end atransverse arm 0 provided with a lip 6 overlapping one edge of thesupporting plate A of the attachment. The said plate C carries the usualpresser plate 0 which bears slightly upon the goods which are passedbetween the marking devices.

The marking arm B is connected with the plate C, carrying the lowermarking device,

by means of a pin b screwed into said arm B, a suitable slot (2 beingformed on the lower side of the tube or tubular arm 6' for the passageof the said pin, said slot permitting said pin to move lengthwise of thesaid tube as the marking devices are adjusted toward and from the needleand said pin forming a connection between the upper and lower markingdevices by reason of the fact that it passes through an upturned lip 0formed on the rear arm 0' of the said plate C, and also through the saidrear arm, so that as the said plate C is adjusted toward and from theneedle the marking arm B will be adjusted simultaneously therewith.

D denotes a gage or guide for the edge of the work, said gage or guidebeing carried by the arm d which is folded over to embrace the frontside of the plate A, the said arm being provided at its rear end with anupturned lip cl which limits the forward adjustment of the said gagewhich, however, may be brought up close to the line of the needle beforethe said upturned lipimpinges against the standard at the rear end ofthe plate A.

E denotes a top plate lying upon the arm (I of the gage D, and also uponthe lip a formed on the rear arm 0' of the bottom plate C, the said topplate E being provided at its sides with downturned flanges e embracingthe said arm d and the said lip c", and the said plate being secured inplace by a set screw 8 tapped into the supporting plate A. When the saidset screw 6' is tightened the gage D and also the plate 0, together withthe marking devices connected with the said plate C, will be held in anyposition to which they may have been adjusted; but by loosening the saidset screw the said plate 0 and the connected marking devices, as alsothe gage D, will be free to be adjusted laterally, or toward and fromthe needle. The said plate E is provided with an index 6 which comesadjacent to a graduated scale formed on the presser plate 0 and the armof the said index 6 has also a laterally extending arm 6 provided with agraduated scale to indicate the position of adjustment of the gage D,said arm being adjacent to said gage.

Embracing the bracket or standard a at 5 the rear end of the plate A isa loop springf one arm of which presses upon a pin 72 passing throughthe transverse shaft Z) in such a manner as to have a tendency to turnsaid shaft slightly to lift the marking arm 13, the m latter beingdepressed by means of the spring arm 6 against the forward end of whicha screw or other projection on the needle bar of the machine is toimpinge to force the marking arm downward so that its forward end willpress upon the goods lying between it and the creasing lip c on theportion 0 of the plate 0; the said spring arm Z2 thus forming a yieldingconnection between the shaft 6 and the needle bar projection whichimpinges against the said arm 6 so that after the said marking devicehas been forced in contact with the work the further downward movementof the needle bar will merelyserve to increase the pressure on the goodswithout further downward movement of the said marking arm.

The upward movements of the marking arm B and the parts moving therewithare limited by the pin 19 which passes loosely 0 through the lip 0formed on the rear arm 0 of the plate 0, the said pin having anelongated head the shoulder at the upper end of which comes in contactwith the under side of the said lip to limit the upward movement 5 ofthe marking arm and connected parts lifted by the said spring f.

Having thus described my invention, I clacim and desire to secure byLetters Paten 1. The combination with the supporting plate A provided atits forward end with means of attachment to the presser foot of a sewingmachine, and having at its rear end the upturned bracket or standard taof the ,5 transverse shaft b journaled in said standard or bracket andprovided with a rigidly attached tubular arm I) which vibratestherewith, the marking arm B fitting in the said tubular arm I) andadapted to be adjusted so longitudinally therein, said shaft 1) havingalso the yielding transmitting arm 12 by which said shaft is operatedfrom the needle-bar of the machine, the plate 0 connected with the saidmarking arm to be simultaneously ad- 5 5 j usted therewith, and providedat its forward end with a marking device to co-operate with the saidmarking arm, and a spring for lifting the said marking arm and the partsmoving therewith.

2. The combination with the supporting plate A provided with thestandard cf, of the transverse shaft 1) provided with the pin b the loopspring f embracing said bracket and pressing upon said pin, a tubulararm carried 65 by said shaft, a marking arm adjustable in said tubulararm and a lower creasing device cooperating with said marking arm andconnected to the latter so as to be adjusted toward and from the needlesimultaneously therewith.

3. The combination with the supporting plate A provided with thestandard a of the shaft 1) journaled in said standard and provided witha tubular arm I), the marking arm B carried by said tubular arm andprovided with a pin or projection 17 a spring for lifting said markingarm, the lower plate 0 provided with a creasing lip c and with the reararm 0 having a lip or projection 0 through which the said pin 6 passes,said pin having a head orprojection to engage the under side of the saidlip to limit the upward movement of the said marking arm under thestress of the said spring.

at. The combination with the supporting plate A and a vibrating markingarm suitably mounted thereon, of the lower plate 0 provided at one endwith a creasing device co-operating with said marking arm, and at itsother end with a transverse arm 0' arranged beneath the said plate A andhaving an upturned lip c embracing said plate A, the top plate E bearingupon said lip 0 and a set screw passing through said top plate E andtapped in the said plate A, said screw serving to clamp the plateEagainst the said lip and thus hold the said plate C in any desiredposition of adjustment.

5. The combination with the supporting plate A, and a vibrating markingarm suitably mounted thereon, of the lower plate C having a creasing lipor projection co-operating with said marking arm, and having also atransverse arm 0' provided with the lip c embracing the said plate A,the gage D provided with the arm (Z embracing the said plate A, the topplate E overlying the said arm cl, and the said lip 0 and a set screwfor securing the said top plate to the said supporting plate.

6. The combination with the supporting plate A, and a vibrating markingarm suitably mounted thereon, of the lower plate C provided with acreasing lip or projection cooperating with said marking arm and havingthe transverse arm 0 provided with the lip 0 the gage D provided withthe arm (Z embracing said plate A, the top plate E provided with the arme having a graduated scale for use in connection with said gage, thesaid top plate E having downturned flanges embracing the set arm d andthe said lip 0 and the said screw (2 tapped in the said supporting plateA and serving to secure the said plate E and the parts clamped therebyin place.

In testimony whereof I affix my signature in presence of two witnesses.

JOHN M. GREIS'I.

Witnesses:

L. W. BEECHER, H. D. STANNARD.

